%descriptionARPACK is a collection of Fortran77 subroutines designed to solve largescale eigenvalue problems.

PARPACK (Parallel ARPACK) is an extension of the ARPACK software packageused for solving large scale eigenvalue problems on distributed memoryparallel architectures. The message passing layers currently supportedare BLACS and MPI.

In addition this package contains executable file for periodicly save the stateduring an ARPACK run.